Closed until when?

The sign at the southbound onramp to Highway 99 at East First Avenue in this photo taken Tuesday indicates the ramp will be closed evenings to accommodate the current project to add a third lane between East First and Highway 32 ... but closed until when? February will apparently be a little longer this year, at least for Caltrans. Also, although the sign suggests the ramp will be closed every night until "Feb. 31," it will only be closed intermittently through then ... whenever then is.